KR102372428B1 - Seedling culture box stacking device - Google Patents

Abstract

The present invention is a conveyor in a seedling box laminating device that allows the seedling boxes to be sequentially stacked on the lifting and lifting pieces of the seedling box at a position where the seedling boxes are to be stacked by running at a constant speed by the conveyor, and then extracted from the conveyor By allowing the seedling box lifting retaining pieces to move in the left and right directions in all directions of the stacking retaining columns at the position where the seedling box of In accordance with the selection of the number of seedling boxes to be stacked in the controller box, breaking away from the mechanical manual control method, the solenoid receives the signal and stacks according to the number of seedling boxes to be placed on the seedling box lifting and holding pieces. The present invention relates to a device for stacking seedling boxes so that they can be moved on a conveyor. When a plurality of seedling box lifting holding pieces 31 are stacked by the drive of The seedling box lifting holding pieces 31 are connected and driven to the sensor 60 and the solenoid 40 formed in 30), and the solenoid 40 is driven by the sensing of the sensor 60, so that the seedling box lifting holding pieces are driven (31) are spread on both sides of the running direction of the conveyor (1) so that the seedling boxes (10) stacked on the seedling box lifting holding pieces (31) can run with the conveyor (1), and also of the present invention The seedling box lifting holding pieces 31 formed on the four sides of the stacked holding column 30 are spread apart in both directions in the running direction of the conveyor 1 according to the lifting and lowering of the lifting plate 44 driven by the solenoid 40 . Also, the elevating plate 44 of the solenoid 40 of the present invention is so that power is applied to the solenoid 40 to be elevated on the rail 43 fixed to the stacked holding column 30, so that it can be elevated When the plate (44) is lowered from the rail (43), The seedling box lifting holding pieces 31 can be spread apart on both sides of the running direction of the conveyor 1, and the present invention also provides a pair of seedling box lifting holding pieces 31 connected oppositely to the stacked holding column 30 The connecting rods 47 are connected to the lifting plate 44 that is lifted by the solenoid 40 to the seedling box lifting holding pieces 31 on one side of the seedling box, and the solenoid 40 is detected by the sensor 60. It is operated so that the seedling box lifting holding pieces 31 are spread out on both sides of the running direction of the conveyor 1 so that the seedling boxes 10 stacked on the seedling box lifting holding pieces 31 can run with the conveyor 1 there is.

Description

Seedling culture box stacking device

The present invention relates to a device for stacking seedling boxes that can be extracted from a conveyor by stacking a certain number of seedling boxes driven by a conveyor, and more particularly, to a position where the seedling boxes are run by a conveyor at a constant speed to be stacked, sequentially In a seedling box laminating device that allows a plurality of seedling box lifting holding pieces to be piled up and then extracted from the conveyor, the seedling box lifting holding pieces are placed in all directions of the laminating holding columns at the position where the seedling box of the conveyor is to be stacked. By allowing movement in the left and right directions, the movement of these seedling box lifting and holding pieces can be performed by the lifting and lowering operation of the solenoid. Accordingly, when the solenoid receives a signal and stacks according to the number of seedling boxes to be placed on the seedling box lifting holding pieces, the stacked seedling boxes are placed on a conveyor and moved.

In general, the seedling box is used to accurately sowing and fertilize seeds for cultivating crops such as rice seeds, and to facilitate movement.

For the growth of seeds in the above seedling box, after the seeds are treated with chemicals, the soil is placed in the seedling box at a certain height, and the seeds are planted in the soil to form germination.

In addition, when a certain amount of water is supplied to the seed of the seedling box, and the root of the seed germinates and grows, it is transplanted using a rice transplanter or the like.

In addition, the seedling box should be continuously supplied to the rice transplanter, but in the process of working one by one, the worker is working by supplying one by one from the supply side by hand.

However, when working in this way, there is a disadvantage that one worker must always be at the supply position of the seedling box, so it is not suitable for the rural reality where there are few workers.

In addition, the supply of the seedling box generally uses a transfer conveyor, and the known agricultural loading box transfer conveyor that transfers to a certain position causes the driving pulley to be driven by the driving force of the driving source, and the driven pulley connected by the driving pulley and the belt is interlocked. , Conveyors are known that transfer the load from the loading and shipping positions to a predetermined position by allowing the load to be loaded and run on the conveyor.

In addition, in the case of the driving means of the conveyor, chains or belts are adopted depending on the load to be transferred, and chains are generally used when the load of the load is large or the driving load is heavy. Conversely, the load of the load is relatively high The belt is used when there is no load or the driving load is small.

In addition, in the case of a chain, although it is widely adopted when precision such as running speed and timing is required, it has a drawback that the equipment cost is relatively high. It is adopted because of its relatively low cost and low equipment cost.

In addition, in Korean Patent Application Laid-Open No. 10-2019-0102314, previously proposed by the present applicant, at a position where the seedling box is driven at a constant speed by the conveyor to be stacked, the seedling box is stably controlled on the step of the lifting plate without trouble with each other The hinge drive of the seedling box lifting retaining piece that allows a certain number of seedling boxes to be placed by the lifting plate is formed above the direction in which the seedling box enters. Hinge actuation, such as a narrowing operation to put a ruler on it, is made at the top of the stack holding column.

In the above, the selection of the number of seedling boxes to be placed on the seedling box lifting holding pieces mechanically limits the height of the number of floors that can be stacked with the seedling box on the solenoid that can be lifted from the inside of the seedling box lifting holding pieces, and also the seedling The seedling boxes stacked on the box lifting holding pieces are driven by the drive link of the link device to perform Kenbeyer travel, and the drive link of the link device is made to stand by at the original position by the contact of the running seedling box, so that the next seedling The boxes will be ready to drive.

As above, the selection of the number of seedling boxes to be placed on the seedling box lifting holding pieces is manually selected by the solenoid, and when the selected seedling box is placed on the seedling box lifting holding pieces, the drive link of the drive link drives the conveyor. Since the solenoid and the link device must be installed, there is a problem that the manufacturing cost is high, and also there is a problem such as causing a malfunction if soil or dust gets on the solenoid and the drive link. .

Republic of Korea Patent Publication No. 10-2019-0102314

The present invention is to solve the above problem, so that the solenoid controlled by the control box can be operated so that the seedling box lifting holding pieces formed on all sides of the stacking holding column at the position where the seedling boxes are to be stacked at the position where the seedling boxes are to be stacked on the conveyor can be operated aims to become

The present invention also provides that the seedling box running on the conveyor is stopped within the stacking holding posts, and then the seedling box is lifted by the operation of a lifting plate connected to the step motor on the bottom of the conveyor so that it can be placed on the seedling box lifting holding piece. do it with

In addition, the present invention is connected to the lifting plate of the solenoid while the seedling box lifting holding pieces in all directions of the position to be stacked are maintained by the force urging inward of the conveyor from the stacking retaining columns, and by driving the lifting plate The seedling boxes of the conveyor can be stacked on the seedling box lifting holding pieces, and when a certain number of the seedling box lifting holding pieces are stacked, the stacked seedling boxes can run on the conveyor by the lowering of the lifting plate of the solenoid. intended to be possible.

In addition, the present invention is controlled and stopped by a seedling box lifting holding piece formed at a position where the seedling box running on the conveyor is to be stacked, and this stopped seedling box is seeded by lifting and driving of a lifting plate driven by a step motor. The purpose is to be able to be placed on the box lifting release retaining pieces.

In addition, the present invention is controlled from both sides of the front part of the seedling box driven by a stopper extending to the front seedling box lifting holding pieces in the running direction of the seedling box among the seedling box lifting holding pieces on all sides of the position to be stacked on the conveyor. The purpose is to be able to self-stop.

In addition, according to the present invention, the seedling box lifting holding pieces are connected by connecting rods with the elevating plate that is lifted and driven by a solenoid, and according to the driving of the lifting plate, the seedling box lifting holding pieces are in the running direction of the conveyor. The purpose of this is to allow the seedling boxes stacked on both sides to run on a conveyor.

In addition, the lifting plate connected to the solenoid of the present invention and driven can be raised and lowered on the rail fixed to the stacked retaining column, so that the seedling box lifting retaining pieces can be spread apart in both directions in the running direction of the conveyor. .

In addition, in the present invention, while the seedling box lifting holding pieces are connected by connecting rods with the elevating plate driven by the solenoid, the seedling box lifting holding pieces connected to the connecting rod are opposite to each other. It is connected to the release holding piece and the fixed rod, and the purpose is to enable the stacked seedling boxes to run on the conveyor, spread on both sides of the running direction of the conveyor.

In the present invention, when a plurality of seedling boxes are run by a conveyor at a constant speed and stacked on a plurality of seedling box lifting holding pieces by driving of a lifting plate in stacking holding columns at positions to be stacked, from the seedling box lifting holding pieces to the conveyor, In the movable seedling box stacking device, the seedling box lifting holding pieces are connected to the sensor and the solenoid formed on the stacking holding column, and the solenoid is driven by the sensing of the sensor so that the seedling box lifting holding pieces are moved on the conveyor. The seedling boxes spread on both sides of the running direction and stacked on the seedling box lifting holding pieces can be driven by a conveyor, and the seedling box lifting holding pieces formed on all sides of the stacked holding column are lifted and lowered by a solenoid According to the elevation of the plate, it can be opened in both directions in the traveling direction of the conveyor, and the elevation plate of the solenoid is solenoid that power is applied to the solenoid so that it can be raised and lowered on the rail fixed to the stacking column, so that the elevation plate is moved from the rail When descending, the seedling box lifting holding pieces can be spread apart on both sides of the running direction of the conveyor, and also to the solenoid on one of the seedling box lifting holding pieces of a pair of seedling box lifting holding pieces connected oppositely to the stacked holding column. The connecting rods are connected to the lifting plate, which is raised by the It is designed to be driven by

As described above, the present invention is a stacking device of a seedling box that allows the seedling box to be sequentially stacked on the seedling box lifting holding pieces at a position where the seedling box is driven at a constant speed by the conveyor and stacked, and then extracted from the conveyor While allowing the seedling box lifting retaining pieces to move in the left and right directions in all directions of the stacking retaining columns at the position where the seedling boxes of the conveyor are to be stacked, the movement of the seedling box lifting retaining pieces is driven by the lifting and lowering operation of the solenoid. By making it possible to do so, the solenoid receives the signal according to the selection of the number of seedling boxes to be stacked in the controller box, breaking away from the mechanical manual control method, and when stacked according to the number of seedling boxes to be placed on the Stacked seedling boxes can be moved on a conveyor.

1 is a perspective view of a laminating apparatus for a seedling box of the present invention;
Figure 2a,b is a front view of an example of operation of the laminating apparatus of the seedling box of the present invention;
Figure 3a,b is a plan view of the laminating apparatus of the seedling box of the present invention;
Figure 4a,b is a cross-sectional view of the operation example of the laminating apparatus for the seedling box of the present invention.

A specific example of the present invention will be described in detail with reference to the accompanying drawings as follows.

As shown in Figures 1, 2a, b and 3a, b, the conveyor 1 of the laminating apparatus for the seedling box of the present invention has a substantially U-shaped cross section between the frames with the transfer rollers 2 rotatably formed and , these conveying rollers (2) are transmitted from the driving motor (3), such as a driving force such as a pulley and a sprocket (not shown), the belt 4 wound on the conveying rollers (2) is infinite orbit from right to left in the drawing is driven, and the seedling box 10 to be described later runs on the belt 4 .

At the center of the conveyor (1), the seedling box (10) is formed in an approximately U-shape at the position to be stacked (20) where the seedling box (10) can be placed on top of each other, and the base part is fixed to both frames (5). In addition, the upper portions of the stacking holding posts 30 are fixed across the fixing rods 32 in the longitudinal direction of the frame 5 . A hinge rod 35 of the seedling box mounting release holding piece 31 to be described later is installed on the fixed rod 32 so as to be elastically freely moved to the outside of the fixed rods 32 around the hinge hole 34 .

In addition, a solenoid 40 is installed so that it can be lifted and lowered inside the stacking holding column 30 at the position 20 to be stacked, and the solenoid 40 transports the seedling boxes 10 traveling by the conveyor 1 to the above. A certain number of the seedling boxes are stacked together with the lifting holding pieces 31 so that they can be run on a conveyor.

4a, b, a total of four seedling box lifting holding pieces 31 are formed at the ends of the fixed rods 32 connecting the stacked holding posts 30 to each other, and are driven on the conveyor 1 The whole seedling box 10 is lifted by a lifting plate 50 to be described later, and placed on the seedling box lifting holding pieces 31 .

The seedling box mounting release holding pieces 31 are stretched hinge rods 35 that can be elastically moved by an elastic spring 33 about the hinge shaft 34 from the fixed rod 32 of the stacked holding column 30 . It is formed at the end of the so that the seedling box 10 running on the conveyor 1 can be placed on the mounting jaw 38 of the seedling box lifting holding piece 31 .

As shown in Figs. 4a and b, the seedling box lifting holding pieces 31 are fixed to the end of the hinge rod 35 and the inside of the frames 5 of the conveyor 1 by the elastic spring 33 has the power to force

And, the seedling box lifting holding pieces 31 are approximately U-shaped, and an upper inclined surface 36 is formed on the upper side, and a corner jaw 37 and a flat surface of the upper inclined surface 36 are formed below the upper inclined surface 36 ( 38) is formed, and a lower inclined surface 39 is formed under the mounting jaw 38. The upper inclined surface 36 allows the lifting plate 44 of the solenoid 40 to be described later to be maintained on the corner sill 37, and the lower inclined surface 39 is a seedling box entering the position 20 to be stacked. (10) to be mounted on the resting jaw (38).

In addition, the present invention is the front of the running direction of the seedling box 10 while allowing the seedling box lifting holding pieces 31 formed in all directions of the position 20 where the seedling box 10 of the conveyor 1 is to be stacked are formed. The seedling box lifting retaining pieces 31 of the conveyor 1 can make the seedling box 10 running on the conveyor 1 stop, and then the seedling box stopped by the operation of the lifting plate 50 on the bottom of the conveyor 1 The four corners of (10) can be placed on the seedling box lifting holding piece (31).

1, 2a,b, 3a,b, 4a,b, the present invention among the seedling box lifting holding pieces 31 of the four sides of the position to be stacked 20 of the conveyor 1 The seedling box 10 is stopped by controlling from both sides of the front part of the seedling box 10 running by the stopper 70 extended to the front seedling box lifting holding pieces 31 in the running direction of the seedling box 10 it is made possible

That is, the stoppers 70 formed on the seedling box lifting holding pieces 31 are bent in a substantially L-shape orthogonal to which the seedling box 10 travels, and formed to face both frames 5 of the conveyor 1 . has been

Therefore, the stoppers 70 of the seedling box lifting holding piece 31 of the present invention are driven by the conveyor 1 to maintain the left and right portions of the seedling box 10 that are not aligned in the forward direction to release the seedling box lifting The holding pieces 31 are arranged to be stacked neatly on the protrusions 38 on all sides, so that the seedling box 10 is twisted to each other at the position 20 to be stacked, and the operation of the device must be stopped due to the stacking trouble, etc. A decrease in productivity can be prevented.

In the present invention, as shown in Figs. 4a and b, the sensor 60 and the solenoid 40 formed on the stacked holding column 30 are connected to the seedling box lifting holding pieces 31 and driven, the sensor 60 of The solenoid 40 is driven by sensing so that the seedling box lifting holding pieces 31 are spread on both sides of the running direction of the conveyor 1, and the seedling boxes 10 stacked on the seedling box lifting holding pieces 31 are It is configured to be able to travel with the conveyor 1 .

The sensor 60 and the solenoid 40 are fixed to the stack holding column 30 and the fixing frame 9 by a bracket 41 .

In addition, the sensor 60 adjusts the height of the seedling box 10 stacked at the position 20 to be stacked in the stacking holding column 30, and when the seedling box 10 is stacked by the height, the switch is turned on and a solenoid Detecting the seedling box 10 reaching the position 20 to be stacked using a method of operating 40 or a contact sensor or an optical sensor, counting the number, and operating the solenoid 40 when counting the set number It can be implemented using a method, etc.

When a current is applied to the solenoid 40, magnetic force is generated to turn on or off a switch coupled to the solenoid.

And, according to the selection of the number of seedling boxes 10 stacked in the stacking position 20 in the stacking holding column 30 in the controller box 100, the sensor 60 detects the solenoid 40 is operated make it possible

In addition, the rod 42 that operates by the application of power from the solenoid 40 is connected, and the lifting plate 44 is connected to the rod 42 . The elevating plate 44 is connected to the rail 42 fixed to the stacking holding column 30 so as to be elevating.

As shown in Figures 1 and 4a, b, the lifting plate 44 is connected to the seedling box lifting holding pieces 31 and connecting rods 47, and the lifting plate 44 of the solenoid 40 is In accordance with the lifting and lowering, so that the seedling box lifting holding pieces 31 can be spread on both sides of the running direction of the conveyor (1).

That is, the first fixing shaft 45 is fixed to the lifting plate 44 , and second fixing shafts 46 are formed on the seedling box lifting holding pieces 31 , and the first fixing shaft 45 ) and the connecting rods 47 are movably connected to the second fixed shafts 46 .

Therefore, as shown in FIG. 4b in the state of FIG. 4a, the seedling box lifting holding pieces 31 formed in all directions of the stacking holding column 30 are driven by the solenoid 40 according to the lifting and lowering of the lifting plate 44. It is designed to be open to both sides of the running direction of the conveyor 1 .

As for the seedling box lifting holding pieces 31, four seedling box lifting holding pieces 31 are elastically maintained within the stacking holding posts 30, and a pair of oppositely connected to the stacking holding posts 30 The connecting rods 47 are connected to the lifting plate 44 that is lifted by the solenoid 40 to one of the seedling box lifting lifting holding pieces 31 of the seedling box lifting holding pieces 31, and the four seedling boxes are connected. The lifting holding pieces 31 are spread apart on both sides of the running direction of the conveyor 1 so that the seedling boxes 10 stacked on the seedling box lifting holding pieces 31 can run with the conveyor 1 .

Next, a driving means for stacking the seedling boxes 10 on the seedling box lifting holding pieces 31 connected by the hinge rod 35 of the stacking holding column 30 will be described.

In the conveyor 1, below the position 20 to be stacked, a lifting plate 50 driven by a driving source is formed. When the seedling box 10 stopped by the stoppers 70 of the seedling box lifting holding piece 31 described above is located in the correct position, the lifting plate 50 lifts the seedling box 10 to maintain the stack. After it is placed on the seedling box lifting holding pieces 31 of the pillar 30, it descends and performs a repetitive stroke to lift the next seedling box 10.

One of the lifting links 53 is connected to both sides of the speed reducer 52 of the step motor 51 with a deviation to the driving disk 56 , and the other side of the lifting link 53 is the bottom surface of the lifting plate 50 . It is connected to and can be moved up and down by the deviation interval of the lifting plate 50 connected to the lifting link 53 by rotation on the driving disk 56 of the reducer 52 .

In addition, male guides 55 formed on all sides of the bottom surface of the lifting plate 50 are formed, and guide rollers 59 are formed on all sides of the fixing bracket 58 of the main body, and the guide rollers 59 The male guides 55 are guided to the fields and are installed so as to be able to ascend and descend by rolling contact. Accordingly, the male guide can be stably driven up and down without external interference.

In addition, a control jaw 56-1 is formed on the driving disk 56 of the speed reducer 52 of the step motor 51, and the control jaw 56-1 and the corresponding fixing bracket 58 are drive-connected. If the sensor 56-2 is formed and the rotation of the driving disk 56 is not smooth, for example, a trouble occurs with the lifting plate 50 and the seedling box 10, and if a normal rotation movement is not made, the The drive linkage sensor 56-2 detects and stops the operation of the step motor 51 and the drive motor 3 of the conveyor 1 as well.

In addition, the lifting plate 50 is formed with a downwardly bent inclined surface 57 on the side where the seedling box 10 enters, and the seedling box 10 is guided along the inclined surface 57 to guide the lifting plate 50 . is allowed to enter. The seedling box 10 is driven by the conveyor 1 at a constant speed by the inclined surface 57 and stopped by the stoppers 70 of the seedling box lifting holding piece 31 at the position 20 to be stacked. The seedling box 10 can be placed on the lifting plate 50 stably without trouble with the lifting plate 50 .

As shown in Fig. 1, when the seedling box 10 enters the position 20 to be stacked, the speed of the seedling box 10 that enters at a constant speed elastically of the elastic piece 6 formed on the conveyor 1 can reduce

And, as shown in FIGS. 1, 2a, b, 3a,b, 4a,b, the seedling box 10 of which the speed is reduced is a seedling box in all directions of the position 20 to be stacked of the conveyor 1 Control from both sides of the front part of the seedling box 10 driven by the stopper 70 extended to the front seedling box lifting holding pieces 31 in the running direction of the seedling box 10 among the lifting release holding pieces 31 Thus, the seedling box 10 is stopped.

Then, the lifting plate 50 is raised by the driving of the driving disks 56 of the reducer 52 and the driving of the lifting link 53, lifting the seedling box 10, and the seedling box 10 is stacked holding column. (30) is placed along the lower inclined surface 39 of the seedling box lifting lifting holding pieces 31 and placed on the placing jaw 38.

As shown in Fig. 4a, when the seedling box lifting holding piece 31 of the seedling box lifting column 30 is placed on the seedling box 10, the lifting link 53 is driven by the driving disk 56 of the reduced speed reducer 52. It descends and waits to lift the next seedling box (10).

And, as shown in FIGS. 2A and 4B , when the seedling boxes 10 are stacked in a set number by repeated driving of the lifting plate 50 , the sensor 60 is positioned to be stacked in the stacking holding column 30 . Adjusting the height of the seedling box 10 stacked on (20) and recognizing that the seedling box 10 is stacked by the height, that is, counting the number and counting the set number, power is supplied to the solenoid 40 As it is allowed to be applied, when a current is applied to the solenoid 40, a magnetic force is generated and the switch coupled to the solenoid 40 is turned on to perform an operation, so that the load 32 of the solenoid 40 is moved to the lifting plate ( 44) is driven down on the rail.

Thereby, as the upper slope 36 is pushed up from the corner jaw 37 of the seedling box lifting release holding piece 31 of the stacked holding column 30, the seedling box lifting release that was supporting the bottom of the seedling boxes 10 is lifted. The retaining piece 31 is pushed to the outside of the stacked holding column 30 so that the entire seedling box 10 is put on the belts 4 of the conveyor 1, and the seedling boxes 10 in the stacked state are , can be driven on the belts 4 of the conveyor 1 .

1: Conveyor 2: Transfer roller
3: drive motor 4: belt
5: frame 6: elastic piece
7: Fixing bracket 8: Arm guide
10: seedling box 20: location to be harvested
30: stacked holding column 31: seedling box lifting lifting holding piece
32: fixed rod 33: elastic spring
34: hinge shaft 35: hinge rod
36: upper slope 37: corner chin
38: resting jaw 39: lower slope
40: solenoid 41: bracket
42: rod 43: rail
44: lifting plate 45: first fixed shaft
46: second fixed shaft 47: connecting rod
50: lift plate 51: step motor
52: reducer 53: elevating link
54: step 55: sharp guide
56: drive disk 56-1: control jaw
56-2: sensor 57: inclined plane
58: fixing bracket 59: guide roller
60: sensor 70: stopper
100: control box

Claims (4)

When the seedling box 10 is driven at a constant speed by the conveyor and stacked in a plurality of the seedling box lifting holding pieces 31 by the driving of the lifting plate 50 in the stacking holding posts 30 at the position to be stacked, In the seedling box stacking device, which is placed on the conveyor (1) from the seedling box loading release holding piece (31) to be movable,
The seedling box lifting holding pieces 31 are connected and driven to the sensor 60 and the solenoid 40 formed on the stacked holding column 30, and the solenoid 40 is driven by the sensing of the sensor 60 to drive the seedling box The lifting holding pieces 31 are spread apart on both sides of the running direction of the conveyor 1 so that the seedling boxes 10 stacked on the seedling box lifting holding pieces 31 can run with the conveyor 1,
Power is applied to the solenoid 40 to the seedling box lifting holding pieces 31 formed on the four sides of the stacked retaining column 30 so that they can be raised and lowered on the rail 43 fixed to the stacked retaining column 30, When the lifting plate 44 descends from the rail 43, the seedling box lifting holding pieces 31 can be spread apart on both sides of the running direction of the conveyor 1,
On the lifting plate 44 that is lifted by the solenoid 40 on one of the seedling box lifting retaining pieces 31 of the pair of seedling box lifting retaining pieces 31 oppositely connected to the stacked retaining column 30 The connecting rods 47 are connected, and the solenoid 40 is operated by the sensing of the sensor 60 so that the seedling box lifting holding pieces 31 are spread out on both sides of the traveling direction of the conveyor 1 to keep the seedling box lifting off The seedling boxes (10) stacked on the pieces (31) can be driven by the conveyor (1),
The lifting plate 50 has an inclined surface 57 bent downward on the side where the seedling box 10 enters, and the seedling box 10 is guided along the inclined surface 57 and stopped by a stopper 70 Lift the seedling box 10 so that it is placed on the seedling box lifting lifting holding pieces 31, and with a deviation in both drive disks 56 of the speed reducer 52 of the step motor 51, the lifting links 53 A stacking device for a seedling box, characterized in that one side is connected.
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